servlet 画验证码

2016-7-8 流沙 JAVA

package com.itheima.response; import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.image.BufferedImage; import java.io.IOException; import java.util.Random; import javax.imageio.ImageIO; import javax.servlet.ServletException;...

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标签: servlet 验证码

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